Car-roof.



n. w. HAWKSWORTiL- CAR ROOF.

APPLICATION FILED JUNE 11, 1910.

Patented May 4, 1915.

wfngsszs [72 Tar/far iai dW/iaw/T swor 2% j M4+Z W ZTW/ DAVID W.HAWKSWORTH, OF DETROIT, MICHIGAN, ASSIGNOR TO HUTGHINS GAR ROOFINGCOMPANY, OF DETROIT, MICHIGAN, A. CORPORATION OF MICHIGAN.

- can-noon.

To all whom it may concern:

Be it known that I, DAVID WORTH, a citizen 'of the United States ofAmerica, residing at Detroit, in the county of Wayne and State ofMichigan, have invented certain new and useful Improvements inCar-Roofs, of which the following is a specification, reference beinghad therein to the accompanying drawings.

The invention relates to car roofs and consists in a novel constructionof means for bracing the roof frame, as more fully hereinafterdescribed.

In the drawings Figure 1 is a plan view of the car roof with the roofingplates removed. Fig. 2 is a similar view showing a modifiedconstruction. Fig. 3 is a cross section of the construction shown inFig. 1.

It is particularly the object of the invention to secure greaterrigidity in the roof frame by a system of diagonal bracing. This bracingconsists of a bar bent to extend in a z1g-zag course between the sideplate of the car and adjacent purlin being rigidly attached to saidplate and purlin, intending to hold the same in parallel relation. Asshown, A is the side plate of a car-of any suitable construction, and'Bis a purlin. v

C is a brace bar preferably of an angle cross section. This bar is bentto have a securing portion D which lies adjacent to the inner face ofthe plate A and purlin B and is secured thereto by bolts or rivets E.The bar 0 is preferably bent to have atleast two portions extending atreverse angles but it may be further extended if desired. The securingportions D are in the vertical portion of the angle section, while thehorizontal portion of said section lies adjacent to the purlin. Thus thebrace does not increase Specification of Letters Patent.

W. Hawksbar C constitutes the V Patented May a, 1915. Application filedJune 11, 1910. Serial No. 568,382.

the depth of the roof structure. In the construction shown in Fig. 1 asimilarly bent ace but this bar is secured at one end, to end plate Fofthe roof frame and extends first to the purlin and then to the sideplate of the car.

With either one of the systems above described, the roof frame isrigidly braced, which will prevent the distortion of the roofing sheets.

What I claim as my invention is:

1. In a car roof, the combination with purlins, of a member of anglecross-section bent to form a diagonal brace with securing portionsparallel to the purlins, the vertical flange of the brace .being incontact with the vertical face of the purlins and the lateral faceextending parallel to and in proximity to the lateral face of thepurlin.

2. In a car roof, the combination with a plurality of purlins, of abrace formed of angle bars havin that overlaps the vertical face of thepurlins and is secured thereto.

- 3. In a car roof, the combination with purlins, of a brace memberlying substantially in the sameplane as the purlins, said a flangeoverlappin --the .transverse face 0 the purlins, and a ange

